Inseam-trimming machine



(No Model.)

' 3 She'ets-Sheet 2. A. LA BONTE. INSEAM' TRIMMING MACHINE.

Patented July 14,1891.

WWNEEEEE- (No ModelQ) 3-Sheets-Sheet a.

A. LA BONTE.

INSEAM TRIMMING MAGHINE.

No. 456,041. PatentedJuly 14,1891.

NVEQNIT E! F? UNITED STATES ATENT OFFICE.

ADOLPHUS LA BONTE, OF BROCKTON, ASSIGNOR, BY MESNE ASSIGNMENTS, TOGEORGE H. P. FLAGG, OF- BOS ON, MASSACHUSETTS.

lNSEAM-TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 456,041, dated July 14,1891.

Application filed NoVemberZO, 1890. Serial No. 372,036. (No model.)

To all whom it may concern:

Be it known that I, AnoLPHUs LA BoNTn, of Brockton, in the county ofPlymouth and State of Massachusetts, have invented oer-- scribed,reference being had to the accompanying sheets of drawings, in which isillustrated a machine for trimming the inseam of a boot or shoeconstructed in accordance with this invention.

Figures 1 and 2 are respectively side and front views of the machine;Fig. 3, a horizontal section on line 3 3,'Fig. 1; Fig. 4, a detail sideview; Fig. 5, a detail vertical sectional view.

In the drawings, A represents the upper portion of a standard or frame,on which are supported the operative parts of the machine, the lowerportion, which is adapted to rest on the floor, not being shown.

B is a horizontal shaft adapted to turn in bearings a in the standardand having a small pulley C on it, on which is adapted to run a belt D,connecting it with any suitable driving-pulley. On the end of this shaftis a cutter-head E, having cutters F, and secured firmly thereon by ascrew G.

H is a block secured to the head J of the standard by screws 1), whichpass through elongated vertical slots in the block and screw into thehead, securing the block in place, the slots allowing of up-and-downmovement of the block on the head, according to their length.

Screwing into a rear portion K of the block H, extending back into aspace in the head J of the block, is a vertical screw L, which passesthrough asocket e in the portion fin the bl0ck-head J and having twoflanges g,

i one above and the other below the portion f,

so that the screw can be turned by its handle H freely therein, butwhich is prevented from vertical movement by the flanges, so thatturning the screw round 1n one or the eled inwardly, and alsotransversely grooved or corrugated, as at h, which wheel is thefeed-wheel.

are arranged to turn in a socket Q in the head, and between the twowheels is a cir cumferential groove m, in which is disposed a pin orthin piece 12 of the head, which allows the wheels to freely turn in butprevents their accidental detachment from the head.

Engaging with the gear-wheel P is a smaller gear-wheel R, secured on theend of a horizontal shaft S, adapted to turn in suitable bearings r inthe head, but disposed horizontally at a slight angle to the other shaftB for the better convenience in arranging it in reference to the otherparts and the engagement of the gear-wheels P and R, the shaft having apulley T and beltUfor operation of the same.

The shaft 0 passes freely through an opening in the block H, whichopening is elongated sufficiently vertically to allow for the propermovement up and down of the block H, carrying the feed-wheel.

V is a Wheel pivoted at t in a block WV, which is secured to a verticalrod Y bya screw u, the rod being arranged to move up and down in asocket o in a standard A and having in the socket a spiral spring Z,which bears against a shoulder 20 on the rod Y and a shoulder a in thesocket to hold the rod up. The wheel V has its edge b made V shape incross-section, and its upper side 61 at its outer edge is arranged to beunder and bear against the periphery. of the feed-wheel, being heldthereto by the spring Z, the wheel V being so pivoted in its block Wthat the side d of the, edge of v the wheel will be parallel or. nearlyor substantially parallel with the periphery of the feed-wheel, as shownin the drawings. The lower end of the rod Yhas an eye f in it, withwhich connects a rod A, connected to any suitable treadle for operationthereof.

B is a wheel pivoted in the lower end of an arm 0', secured in a socketg and held On the inner end of this wheel is a gear-wheel P, and the twowheels as one by a screw 71. in a bracketD',the screw passing through avertical slot 111. in the bracket, so that the wheel 13 can be regulatedas to its height by mox ing the arm up or down in its socket, and whenproperly adjusted securing it in such position by tightening the screwh.

In the operation of the machine, the shafts B and S having been set inmotion, the cutter-head E, with the cutters F, willbe revolved veryrapidly and the feed -wheel N will be turned much slower. WVhen inoperation, the boot E to be operated upon, which has its upper F andwelt G secured to the channeled lip J of the inner sole H by stitches,as usual, is then placed in the machine, first pulling down the wheelVthrough its rod Y and placing the welt up against the feed-wheelbetween it and the wheel V, and then the wheel is allowed to rise and tobear against the welt by the pressure of the spring Z, its outer edge bresting and pressing into the rand of the boot and the sole of the bootagainst the wheel B, as shown in detail in Fig. 4, the boot beingpreferably placed so as to commence at or near the heelof one side ofthe boot. The boot is then held firmly by theoperator, when thefeed-roll will then feed the boot along under the cutters, and beingalso guided, turned, and controlled more or less by the operator thecutters will cut and trim off the inseamedges of the upper, channel-lipof the inner sole and edge of the'welt, as desired. By screwing in orout the screw L the block H, and through it the wheel N, will be loweredor raised, by which the edge of the upper, welt, 850., can be trimmedmore or less, as desired, the boot or shoe being held up against thefeed-roll by the operator and the power of the spring Z of the wheel V.The standard is made hollow, as at K, and it extends over the workingparts in the form of a hood L, as shown in Figs. 1 and 2, moreparticularly, by which the cuttings, 850., can be made to pass throughthe chamber K of the standard by any suitable air-blowing mechanism forcarrying them away from the operator.

In Fig. 5 the hood portion is removed in order to show the working partsmore clearly.

Any desired number of cutters can be arranged on the cutter-head,although the number shown is practical; also the wheel U can be held toits work in other ways than as shown.v g

I am aware of Patent No. 434,359 to Scott, dated August 12, 1890, anddisclaim all claimed therein, for in Scotts machine the feed-wheel is atthe outer side of the rotary cutter, and hence can act only on that partof the sole which extends outwardly from between the -feed-wheel andrand-support, while in my machine it is essential that the cutter shallbe at the outer side of the feed-wheel, in order that it may act on thatpart of the sole which is nearer the middle of the sole than the partclamped between the feed-wheel and supportthat is, trim the seam whichunites the welt, upper, and inner sole.

I do not claim in this application what is claimed in anotherapplication of mine, Serial No. 372,036, filed November 20,1890; but,

Having thus described my invention, what I claim is- In combination, ayielding support to enter the rand of a shoe, a feed-wheel opposed tothe support, these parts being arranged to take the welt between them,and a rotary cutter mounted at the outer side of the feedwheel to trimthe seam uniting the welt, upper, and inner sole, and a rest at theouter side of the cutter, all substantiallyv as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ADOLPI-IUS LA BONTE.

Witnesses:

EDWIN WV. BROINN, CARRIE E. NIoHoLs.

